
import axios, { AxiosInstance, AxiosRequestConfig, AxiosResponse } from 'axios'
import { ElMessageBox, ElMessage } from 'element-plus'
import errorCode from '@/utils/errorCode'
import { getToken } from '@/utils/auth'
import { useUserStore } from '@/store/user'

// 是否显示重新登录
export let isRelogin = { show: false };

const service: AxiosInstance = axios.create({
  // axios中请求配置有baseURL选项，表示请求URL公共部分
  baseURL: import.meta.env.VITE_APP_BASE_API as string,
  // 超时
  timeout: 10000,
  headers: {
    'Content-Type': 'application/json;charset=utf-8',
  },
});

// Request interceptors
service.interceptors.request.use(
  (config: AxiosRequestConfig) => {
    // 是否需要设置 token
    const isToken = (config.headers || {}).isToken === false
    if (getToken() && !isToken) {
      // 设置请求携带自定义token
      config.headers['Authorization'] = 'Bearer ' + getToken()
    }
    return config;
  },
  (error: any) => {
    Promise.reject(error)
  }
);

// Response interceptors
service.interceptors.response.use(
  async (res: AxiosResponse) => {
    // 未设置状态码则默认成功状态
    const code = res.data.code || 200
    const msg = errorCode[code] || res.data.msg
    if (code === 401) {
      if (!isRelogin.show) {
        isRelogin.show = true;
        ElMessageBox.confirm('登录状态已过期，您可以继续留在该页面，或者重新登录', '系统提示', {
          confirmButtonText: '重新登录',
          cancelButtonText: '取消',
          type: 'warning'
        }).then(() => {
          isRelogin.show = false
          const userStore = useUserStore()
          userStore.LogOut().then(() => {
            location.href = '/index'
          })
        }).catch(() => {
          isRelogin.show = false
        })
      }
      return Promise.reject('无效的会话，或者会话已过期，请重新登录。')
    } else if (code === 500) {
      ElMessage({
        message: msg,
        type: 'error'
      })
      return Promise.reject(new Error(msg))
    } else if (code !== 200) {
      ElMessage.error({
        message: msg,
        type: 'error'
      })
      return Promise.reject('error')
    } else {
      return Promise.resolve(res.data)
    }

  },
  (error: any) => {
    // do something
    let { message } = error
    if (message === 'Network Error') {
      message = '后端接口连接异常'
    } else if (message.includes('timeout')) {
      message = '系统接口请求超时'
    } else if (message.includes('Request failed with status code')) {
      message = '系统接口' + message.substr(message.length - 3) + '异常'
    }
    ElMessage({
      message: message,
      type: 'error',
      duration: 5 * 1000
    })
    return Promise.reject(error);
  }
);

export default service;
